function isEmail(s)
{
	var i = 1,Length = s.length,result;

	while((i<Length) && (s.charAt(i) != '@')) i++;
	
	if ((i == Length) || (s.charAt(i) != '@'))
	{
		alert("Email address don\'t have the character @ after the login name.");
		return false;
	}
	
	i+=2;
	
	while((i<Length) && (s.charAt(i) != '.')) i++;

	if ((i == Length) || (s.charAt(i) != '.'))
	{
		alert("Email address don\'t have the character . after the domain name.");
		return false;
	}

	if (i+1 >= Length)
	{
		alert("Email address should have atleast one character after . ");
		return false;
	}
	
	return true;
}



//-->